Congestive Heart Failure Home > Normal Digoxin Blood Level

Your dosage of digoxin (Lanoxin®) may be adjusted no more often than every two weeks based on how you respond to the medicine and the results of your digoxin blood level. Normal therapeutic blood levels of digoxin (Lanoxin®) are considered to be between 0.5 and 2 ng per mL.
 
However, some clinical studies have shown that the target digoxin blood level for effectively treating heart failure is between 0.5 and 1 ng per mL. Most people will likely be maintained on a digoxin dosage between 0.125 mg and 0.25 mg to achieve this level. Digoxin toxicity is likely to occur if levels exceed 2 ng per mL.
 
Because digoxin toxicity can occur with normal use, make sure to contact your healthcare provider if you notice any signs of this potentially dangerous complication. Some signs of digoxin toxicity include vision changes, confusion, and vomiting.
 
(For more information on normal digoxin blood levels, click Digoxin Dosage. This article provides information on specific dosing guidelines for treating congestive heart failure or atrial fibrillation.)
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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